#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int N, M, K;
  cin >> N >> M >> K;
  vector<vector<int>> A(N, vector<int>(M));
  for (int i = 0; i < N; i++) {
    for (int j = 0; j < M; j++) {
      cin >> A[i][j];
    }
  }
  vector<vector<bool>> dp(N + 1, vector<bool>(K + 1, false));
  dp[0][0] = true;
  for (int i = 0; i < N; i++) {
    for (int j = 0; j < M; j++) {
      for (int k = 0; k + A[i][j] < K + 1; k++) {
        dp[i + 1][k + A[i][j]] = dp[i + 1][k + A[i][j]] | dp[i][k];
      }
    }
  }
  for (int i = K; i > -1; i--) {
    if (dp[N][i]) {
      cout << K - i << '\n';
      return 0;
    }
  }
  cout << -1 << '\n';
  return 0;
}